Harrow.



l. A'. MIERZWIK.

NARROW.

APPLICATION FILED JUNE 23, "ll- 1,249,450. Patented D90. 11,1917.

amntoz J- H MIERZWIK 1 v Quota",

uNITEnsTAT-Es L orm vA. all;E113-zvvi1 n .orrpsoon, TEXAS.

rmrmow.

speciilcation of Letters Ifateut.

Patented Dec. 11, 1917.

Applicatitm filed June 23, 1917. SerlahNo. 17.6,592.

Toall rwhomz'tmayeoneern: Beitknown that. JOHN A. MIERZWIK, a citizen ofthe UnitedStatearesiding at Ros- ,tcoc in ithe 'countynof Nolan andEstate of ",Texas,qhas invented certain new and useful Improvements inHarrows, of which the fol- .lowing'is a specification, reference beinghad "to the accompanying drawings.

This invention relates to certain improve- ,ments inharrowsand it is anobject of the invention to .p rovidea device of this general characterhaving novel and improved means whereby the slant'of the teeth may bevaried or changed in accordance with the require- .ments of practice.

' lt-iis also an object of the invention .to ro-yide anovel and improvedbarrow 50f a type together with means whereby the same may be readilyexpanded when re- .-=.quired. E I r a The-inventionconsists in thedetails of construction and :inthe combination and arrangement of theseveral pa-rtsof my iml-proved aharrow wherein :oertain important-;advantages are :attained and thesdeviee rendered simplerflessexpensive and otherwise ,itnore convenient-and advantageous for use, aswill be hereinafter-more fully set forth.

The novel features of my invention will 80 hereinafter be definitely.claimed.

"ln orderthat my invention may be the betptermnderstood liwtill nowproeeedto describe the same with; reference to, the .accomp anying,adIfaWzin gSWllBIfein -r1. a :EE i-g ure. i1 iis a view top planwith'por- Lions-broken awaygeof ai iharrow constructed.-'ziniraecordance=w h-ianiembodiment'iofmy.in-

t i 1 is alongitudinal vertical sectional iwiew -taken throughxthejdeviee as disclosed in vftligil vstitlrthecentral beam in elevation;

Fig.- -i3 is aa seotiomal view 1 taken substantially=on thelinefi3+r3 ofFig.= '1; and i =1 Eig.= at is: sa se'fctiidnal \view: taken substan-,tially ion the line Mot Figi :1. Y

.As ==dts:c1dsad iui this seem anying drawings 1 denotes a central tulllarbeam of portion of .themember 2 isihorizontally disposed asindicated at 3 and isutelesopicall y (engaged with the forwardendportion of .the beam 1. Suitably secured .to the horizontal portion 3in advance of the beam 1 is the cross member at extending beyondopposite sides of thebeam 1. Pivotally engaged at 5 with each of theopposite end portions of the member 4 is a side beam 6 also preferablytubular in form. The rear end portion of each of the side beams 6 haspivotally engaged therewith from below an arm 7 the inner end of whichis pivotally engaged as at S with the members 9 slidably engaged withthebeam 1 whereby it will be perceived that upon imparting requisitemovement to themembers 9 longitudinally of the beam 1 the side beam 6will be either expanded or retracted relative ,to the ,beam 1. As hereembodied the upper member 9 is provided with an upstanding arm 10 withwhich, is pivotallyengaged a rearwardly directedarm 11 having its rearend :portion pivotally engaged with an upstanding operating lever 12pivotally supported by the rear end portion of the beam 1. The lever 12is-of fl.*COI1VBI1- tional construction and is of substantially the sameconstruction as the lever 14 to be hereinafter referred to. Suitablyclamped. to the forward end portion of the beam 1 is an upstandingmember 16 having its' upper portion provided with a barrelli'i throughiwhioh is loosely directed the rod; 18 disposed longitudinally of (thebeam 1 and ihavirrg; its inner end portion pivota-lly engaged with thetransverse :stna 19 "carried by j=the lever nuhereinbefore ire erred to.The forward portion of the rod;18 isioperativelywengagedzwwith thej-intermediate or base portlonnef the substantially iJ-shaped-memberl-oryoke A20. The arms of the yoke 20 are forwardly directed and, have theirfree end portions pivotally engaged as at 21 with the inwardly 1inclined end portions-22 of the bars '23. 1; I;

Disposed transverselyiof each ofitheiside beams Sails .a pluralityofv-longi-tudi nally spa-cedsleeves 124.: Disposed; tlifnougihwachpredetermined dimeusiensfiandrwliich has of: the sleevesaitslislmshank-Q having; hem

secured to the forwardaendtportimt thereof 50 the upstanding member 2 towhich suitable hitching meemimm hrdaiited eo he" engagedsaidshranklanine outer end .portion-proyided with ,a: perforate head 26while the opposite end portion of ged thw 1a 616K or whereby the devicemay be operativelg wing iiut 27. The s ank 25 in advance oft e connectedwith a cultivator. The lower end head 26 is provided with an upstandingarm 'beam 1.

28 terminating in an inwardly directed lug 29 loosely disposed throughan adjacent bar 23. .Insertd through the lug29 inwardly of the bar 23 isa cotter pin 30 or the like whereby the bar 23 is maintained inoperative relation relative to the lug 29. Directed through theperforate head 26 of each of the shanks 25 is a harrow tooth 31. Theslanting of the teeth 31 is of especial advantage in foul 'land as tlfeteeth 31 can be disposed on such an angle as to prevent ballingespecially in a field having corn or cotton stalks.

Pivotally supported at opposite sides of the beam l adjacent the rearend thereof are the harrow teeth 32 which extend above/the The upper endportions of the teeth 32 have pivotally engaged therewith the link oryoke 33 which is also pivotally engaged with the rearwardly directed endportion of the strap 19 whereby it will be at once self evident that theteeth 32 will be moved in unison with and in the same general directionas the teeth 31.

As before stated the member 2 provides ameans for securing my improvedharrow to a cultivator or affords a suitable hitch. When the device isin use independently of the cultivator the handles H are employed. Asherein disclosed the inner end portions of the handles H are secured tothe upstanding member 16'thro'ugh the medium of a removable bolt 33 orthe like. Interposed between the outer end portion of the handles H andthe rear end portion of the beam 1 are the brace members 34. The loweror inner end portions of the brace members 34 are operatively engagedwith the pivot bolt 35 of the teeth 32 and which bolt 35 is readilyremovable. It will be at once self evident that with the use of theremovable bolts 33 and 35 the handles H together with the brace members34 can be readily removed when it is desired to attach my impjrovedharrow directly to a cultivator. -ach of the 'lever's Band 14 isprovided with it-conventional latch mechanism 36 cothought-to 'beobvious-that a liarrow conit maybe as'sembled and operated and it-willaiso beobvious that 'my invention is susceptible of some change-andmodification-without materially departing from the appearanceand'fispirit' thereof and for this reason 'I do notqwish to beunderstood as limiting myselfto the preeise arrangement and formation ofthe several parts herein-shown in goplea 01 this patent may bezobtained-tor flvs cents' as hereinafter claimed.

1. A harrow comprising a central beam, 9. cross member secured to theforward end portion-thereof, a side beam pivotally engaged with each endportion of the cross member, a plurality of shanks disposed transverselof each of the side beams and capable of rotary movement," "upstandingrock arms carried b the shanks, a bar operatively engaged with each ofsaid rock arms, teeth depending from the shanks, and means co-actingwith said bar for imparting rocking movement to the shanks.

2. A harrow comprising a central beam, a cross member secured to theforward end portion thereof, a side beam pivotally engaged with each endportion of the cross member, a plurality of shanks disposed transverselyof each of the side beams and capable of rotary movement, upstandingrock arms carried by the shanks, a bar operatively engaged with each ofsaid rock arms, teeth depending from the shanks, a member pivotallyengaged with the forward end portion of the bar, and means eo-actingwithsaid last named member for imparting endwise movement to the bar forrocking the shanks.

3. In combination with the side beams of a harrow, shanks rotatablysupported by said beams, teeth depending from the shanks, rock armscarried by the shanks, bars ope'ratively engaged with the rock arms ofthe shanks, the forward end portions of the arms being inwardlydirected, a member pivotally engaged with the inwardly directed portionsof the bars, and means co-acting with said last named member forimparting endwise movement to the bars.

4:. A har'row comprising a. central beam, a cross member carried by theforward end thereof, side beams pivotally engagedwith the opposite endportions of the cross memher, teeth depending from said side-beams, a

member slidably engaged with the central beam,--arms pivotally engagedwith the slid ing member and with the side beams, means for impartingmovement to the sliding member longitudinally of the central beam forexpanding or retractirig the side beams,-sa1'd= I teeth being capable'ofrockingmov'ement, andmeans Ecarried bytlie central beam for impartingrockin movement to the teethi In-testimony w ereof I hereunto afli'xa mysignature in 'the presence of two witnesses;

' JOHNA. MIERZWIK. Witnesses:

T. M. DOBBI'NS, 'Jomue Jone.

was, damnin .the i' amass o1. Mite'n'ti.

